US20190219129A1 - Connecting Assembly For Connecting A Plurality Of Damper Mass Elements Of A Damper Mass - Google Patents

Connecting Assembly For Connecting A Plurality Of Damper Mass Elements Of A Damper Mass Download PDF

Info

Publication number
US20190219129A1
US20190219129A1 US16/303,002 US201716303002A US2019219129A1 US 20190219129 A1 US20190219129 A1 US 20190219129A1 US 201716303002 A US201716303002 A US 201716303002A US 2019219129 A1 US2019219129 A1 US 2019219129A1
Authority
US
United States
Prior art keywords
damper mass
elements
connection
shaft
damper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US16/303,002
Other languages
English (en)
Inventor
Christoph Fauss
Achim Kraus
Bernhard Schierling
Nikolaj Knaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Assigned to ZF FRIEDRICHSHAFEN AG reassignment ZF FRIEDRICHSHAFEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHIERLING, BERNHARD, Knaus, Nikolaj, KRAUS, ACHIM, FAUSS, CHRISTOPH
Publication of US20190219129A1 publication Critical patent/US20190219129A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/1202Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the damping action being at least partially controlled by centrifugal masses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/133Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • F16F15/134Wound springs
    • F16F15/13469Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00Purpose; Design features
    • F16F2230/0041Locking; Fixing in position

Definitions

  • connection elements for the connection of a plurality of damper mass elements by connection elements to form a damper mass
  • connection elements each have a central axis in axial direction and are formed by a shaft with shaft ends at both sides, the shaft ends and the shaft are enclosed by inner walls of passages of the damper mass elements that inner walls extend around the central axis.
  • FIGS. 1 to 3 show the prior art.
  • FIG. 1 or FIG. 2 shows a damper system 102 with a damper mass carrier 103 formed as a hub disk that has guideways 111 ( FIG. 1 ) in which coupling elements 115 are received so as to be relatively movable.
  • the coupling elements 115 further run in guideways 117 of damper masses 118 , which in each instance comprise a plurality of damper mass elements 119 a to 119 c .
  • the axially outer damper mass elements 119 a and 119 c of the above-mentioned damper mass elements 119 a to 119 c are arranged axially at both sides of the damper mass carrier 103 , and damper mass elements 119 b are received axially therebetween.
  • damper mass elements 119 a and 119 c extend farther radially inward than damper mass elements 119 b , damper mass elements 119 a and 119 c form a receiving space 105 axially therebetween for stop elements 107 which are fastened to the damper mass carrier 103 and which are operative in circumferential direction and in radial direction and limit a relative movement of the damper masses 118 with respect to the damper mass carrier 103 .
  • Damper mass elements 119 a and 119 c also limit the axial relative movability of the damper masses 118 with respect to the damper mass carrier 103 because they extend farther radially inward than damper mass elements 119 b.
  • the damper mass elements 119 a to 119 c have passages 124 a to 124 c , which are aligned with one another along central axes 121 .
  • Passage 124 a is formed in damper mass element 119 a
  • passages 124 b are formed in damper mass elements 119 b
  • passage 124 c is formed in damper mass element 119 c .
  • Passages 124 a to 124 c surround the connection elements 120 with inner walls 128 a to 128 c .
  • Passage 124 a encloses a shaft end 130 of the respective connection element 120
  • passages 124 b enclose a shaft 132
  • passage 124 c encloses a shaft end 134 .
  • Passage 124 a leads into a widening 138 a at the axial outer side of damper mass element 119 a
  • passage 124 c leads into a widening 138 b at the axial outer side of damper mass element 119 a .
  • the shaft end 130 When carrying out a riveting process, the shaft end 130 is deformed accompanied by the formation of a head 139 a in widening 138 a , and shaft end 134 is deformed accompanied by the formation of a head 139 b in widening 138 b .
  • Damper mass elements 119 a to 119 c are then connected, respectively, to form a damper mass 118 , specifically in such a way that the connection elements 120 do not extend axially beyond the axially outer damper mass elements 119 a or 119 c . This allows for an axially compact construction of the damper masses 118 .
  • damper mass elements 119 a to 119 c are usually formed by stamping, and widenings 138 a and 138 b are formed by punching. A plurality of work steps are required for this purpose. If punching is dispensed with in order to further optimize costs, then only a stamping process would be required to produce the damper mass elements. This would make it possible to use tools with fewer tool steps and to press with less press force, but the heads 139 a , 139 b of the connection elements 120 would then extend axially beyond the axially outer damper mass elements 119 a or 119 c such that the damper masses 118 would require more axial installation space, the availability of which is usually extremely limited.
  • connection arrangement serving to connect a plurality of damper mass elements for forming damper masses that allows an arrangement of the damper masses in limited installation space with an extremely cost-optimized production.
  • connection elements for the connection of a plurality of damper mass elements by connection elements to form a damper mass.
  • the connection elements have a central axis in axial direction and are formed by a shaft with shaft ends at both sides, the shaft ends and the shaft are enclosed, respectively, by inner walls of passages of the damper mass elements that inner walls extend around the central axis.
  • At least a portion of the shaft ends has, by a hole face, a connection to the respective associated inner wall of the corresponding passage of the respective damper mass element.
  • the shaft ends of the connection elements are impacted by a stamp of a tool at axial end faces so that material is displaced from the center of the respective shaft end into the circumferential area of the shaft end.
  • This process can be carried out with comparatively little force amounting to only a fraction of the force required in the prior art to produce impressions.
  • connection elements are preferably formed in each instance by a pin, the cross section of which is at least substantially constant along its axial extension.
  • FIG. 1 is a top view of a prior-art damper system with a damper mass carrier and with a plurality of damper masses which are relatively movably received at the damper mass carrier;
  • FIG. 2 is a sectional view of the damper system according to line B-B in FIG. 1 with damper masses having a plurality of damper mass elements, wherein the damper mass elements are connected to one another by a connection arrangement formed by connection elements;
  • FIG. 3 is an enlarged view of detail Z, shown in FIG. 2 , for illustrating the connection elements of the connection arrangement;
  • FIG. 4 is a damper system with a solution according to one aspect of the invention.
  • FIG. 5 is a sectional view of the damper system according to line B-B in FIG. 4 with damper masses having a plurality of damper mass elements, wherein the damper mass elements are connected to one another by a connection arrangement formed by connection elements;
  • FIG. 6 is an enlarged view of detail Z, shown in FIG. 5 , for illustrating the connection elements of the connection arrangement.
  • a damper system 2 having a connection arrangement 1 is shown in FIGS. 4 to 6 .
  • the damper system 2 which is rotatable around a central axis 6 , is provided with a damper mass carrier 3 formed as a hub disk and connected to a hub 8 provided with an inner toothing 9 for connecting to a shaft, not shown, for example, a transmission input shaft, so as to be fixed with respect to rotation relative to it.
  • the damper mass carrier 3 has guideways 11 ( FIG. 4 ) in which coupling elements 15 are relatively movably received.
  • the coupling elements 15 further run in guideways 17 of damper masses 18 that each comprise a plurality of damper mass elements 19 a to 19 c .
  • damper mass elements 19 a and 19 c of these damper mass elements 19 a to 19 c are arranged axially at both sides of the damper mass carrier 3 , and damper mass elements 19 b are received axially therebetween. Due to the fact that damper mass elements 19 a and 19 c extend farther radially inward than damper mass elements 19 b , damper mass elements 19 a and 19 c form a receiving space 5 axially therebetween for stop elements 7 fastened to the damper mass carrier 3 and which are operative in circumferential direction as well as in radial direction and limit a relative movement of the damper masses 18 with respect to the damper mass carrier 3 . Damper mass elements 19 a and 19 c also limit the axial relative movability of the damper masses 18 with respect to the damper mass carrier 3 because they extend farther radially inward than damper mass elements 19 b.
  • the damper mass elements 19 a to 19 c have passages 24 a to 24 c that are aligned with one another along central axes 21 , passage 24 a being formed in damper mass element 19 a , passages 24 b being formed in damper mass elements 19 b and passage 24 c being formed in damper mass element 19 c .
  • Passages 24 a to 24 c surround the connection elements 20 with inner walls 28 a to 28 c .
  • Passage 24 a encloses a shaft end 22 of the respective connection element 20
  • passages 24 b enclose a shaft 30
  • passage 24 c encloses a shaft end 26 .
  • Passages 24 a have at least substantially the same inner diameter, and connection elements 20 also always have the same outer diameter at least substantially along their axial extension.
  • connection elements 20 have recesses 64 , 66 at axial end faces 60 , 62 .
  • Recess 64 is associated with end face 60 of shaft end 22
  • recess 66 is associated with end face 62 of shaft end 26 .
  • the recesses 64 , 66 have areas of the end faces 60 , 62 which are acted upon by stamps 45 , 46 of tools 48 , 49 over the course of the manufacturing process.
  • the tools 48 , 49 with stamps 45 , 46 are shown only schematically in FIG. 6 by dashed lines.
  • This hole face 32 , 34 provides for a frictionally engaging connection between the shaft ends 22 , 26 of the connection elements 20 and passages 24 a and 24 c in the damper mass elements 19 a and 19 c . Since the two axially outer damper mass elements 19 a and 19 c are secured axially relative to one another in this way, the axially inner damper mass elements 19 b are also axially secured between the axially outer damper mass elements 19 a and 19 c . A composite is formed from the individual damper mass elements 19 a to 19 c , and a damper mass 18 is formed accordingly.
  • connection elements 20 they are preferably formed in each instance by a pin 38 with a cross section that is at least substantially constant along the axial extension of the pin 38 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Vibration Prevention Devices (AREA)
  • Vibration Dampers (AREA)
US16/303,002 2016-05-19 2017-04-18 Connecting Assembly For Connecting A Plurality Of Damper Mass Elements Of A Damper Mass Abandoned US20190219129A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016208636.7A DE102016208636A1 (de) 2016-05-19 2016-05-19 Verbindungsanordnung zur Verbindung einer Mehrzahl von Tilgermassenelementen einer Tilgermasse
DE102016208636.7 2016-05-19
PCT/EP2017/059083 WO2017198404A1 (de) 2016-05-19 2017-04-18 Verbindungsanordnung zur verbindung einer mehrzahl von tilgermassenelementen einer tilgermasse

Publications (1)

Publication Number Publication Date
US20190219129A1 true US20190219129A1 (en) 2019-07-18

Family

ID=58640834

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/303,002 Abandoned US20190219129A1 (en) 2016-05-19 2017-04-18 Connecting Assembly For Connecting A Plurality Of Damper Mass Elements Of A Damper Mass

Country Status (5)

Country Link
US (1) US20190219129A1 (de)
EP (1) EP3458741A1 (de)
CN (1) CN109154357A (de)
DE (1) DE102016208636A1 (de)
WO (1) WO2017198404A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019207811A1 (de) 2019-05-28 2020-12-03 Zf Friedrichshafen Ag Tilgersystem
DE102019208068A1 (de) * 2019-06-04 2020-12-10 Zf Friedrichshafen Ag Tilgersystem
DE102019215923A1 (de) * 2019-10-16 2021-04-22 Zf Friedrichshafen Ag Tilgersystem

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015102228A (ja) * 2013-11-28 2015-06-04 トヨタ自動車株式会社 振動低減装置
US20150316124A1 (en) * 2012-10-29 2015-11-05 Zf Friedrichshafen Ag Torsional Vibration Damper
US20150316125A1 (en) * 2012-12-20 2015-11-05 Schaeffler Technologies AG & Co. KG Centrifugal pendulum
US20150377320A1 (en) * 2014-06-27 2015-12-31 Toyota Jidosha Kabushiki Kaisha Vibration damping device
US10100898B2 (en) * 2012-10-29 2018-10-16 Zf Friedrichshafen Ag Torsional vibration damper
US20190024751A1 (en) * 2016-01-14 2019-01-24 Nsk Ltd. Centrifugal pendulum damper and torque transmission device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361575A1 (fr) * 1976-08-13 1978-03-10 Ferodo Sa Dispositif amortisseur de torsion, notamment friction d'embrayage, et outil propre au sertissage des entretoises qu'il comporte
DE102009028466B4 (de) * 2009-08-12 2021-08-05 Zf Friedrichshafen Ag Verfahren zum Vernieten zweier Bauteile, insbesondere Deckscheibenelemente einer Torsionsschwingungsdämpferanordnung, in gegenseitigem Abstand zueinander
DE102011085106A1 (de) * 2010-11-11 2013-02-28 Schaeffler Technologies AG & Co. KG Drehschwingungstilgervorrichtung und Drehmomentübertragungsvorrichtung für ein Kraftfahrzeug
DE102012212734A1 (de) * 2012-07-19 2014-01-23 Zf Friedrichshafen Ag Dämpferanordnung
FR3009049B1 (fr) * 2013-07-29 2016-01-22 Valeo Embrayages Disque d'embrayage pour embrayage a friction
DE102014218621A1 (de) * 2013-10-23 2015-04-23 Schaeffler Technologies Gmbh & Co. Kg Fliehkraftpendel
DE102014220560A1 (de) * 2013-11-08 2015-05-13 Schaeffler Technologies AG & Co. KG Fliehkraftpendel
DE102014207961A1 (de) * 2014-04-28 2015-10-29 Zf Friedrichshafen Ag Tilgerschwingungsdämpfer und Verfahren zum Bereitstellen eines Tilgerschwingungsdämpfers
DE102014221639A1 (de) * 2014-10-24 2016-04-28 Zf Friedrichshafen Ag Tilgerschwingungsdämpfer und Antriebsstrang
DE202015004276U1 (de) * 2015-06-17 2015-08-24 Zf Friedrichshafen Ag Verbindungsanordnung zur Fixierung zweier Tilgermassenträger eines Tilgersystems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150316124A1 (en) * 2012-10-29 2015-11-05 Zf Friedrichshafen Ag Torsional Vibration Damper
US10100898B2 (en) * 2012-10-29 2018-10-16 Zf Friedrichshafen Ag Torsional vibration damper
US20150316125A1 (en) * 2012-12-20 2015-11-05 Schaeffler Technologies AG & Co. KG Centrifugal pendulum
JP2015102228A (ja) * 2013-11-28 2015-06-04 トヨタ自動車株式会社 振動低減装置
US20150377320A1 (en) * 2014-06-27 2015-12-31 Toyota Jidosha Kabushiki Kaisha Vibration damping device
US20190024751A1 (en) * 2016-01-14 2019-01-24 Nsk Ltd. Centrifugal pendulum damper and torque transmission device

Also Published As

Publication number Publication date
EP3458741A1 (de) 2019-03-27
CN109154357A (zh) 2019-01-04
DE102016208636A1 (de) 2017-11-23
WO2017198404A1 (de) 2017-11-23

Similar Documents

Publication Publication Date Title
US20190219129A1 (en) Connecting Assembly For Connecting A Plurality Of Damper Mass Elements Of A Damper Mass
EP1686276B1 (de) Doppelkupplung mit Kupplungssteg
DE10334402B4 (de) Anordnung und Verfahren zur Drehmomentübertragung
DE102004007773A1 (de) Kraftbeaufschlagungsanordnung für eine Reibungskupplung
EP3105464B1 (de) Normal-eingerückte kupplungsvorrichtung
CN205013590U (zh) 针齿摆线减速器
US20170159739A1 (en) Disk spring
JP5354111B1 (ja) 十字軸式自在継手およびその製造方法
US8567581B2 (en) End plate for a plate assembly, frictionally operating device having an end plate of this kind, and method for the production of an end plate of this kind
US9631682B2 (en) Synchronization device for manual transmission of vehicle
CN112805487B (zh) 碟形弹簧、碟形弹簧装置、以及碟形弹簧的制造方法
JP2018522178A (ja) 多板クラッチ用のディスクアッセンブリ
CN108026981A (zh) 具有转矩传递板的(双)离合器、包括离合器和工具的系统和用于平衡离合器的方法
CN101680495B (zh) 用于将离合器分离轴承连接到调整杆上的连接结构
WO2017178003A1 (de) Doppelkupplungsvorrichtung
DE102014216346B4 (de) Tellerfeder für eine Reibungskupplung und Verfahren zu deren Herstellung
US6216836B1 (en) Housing component and friction surface structural assembly for a hydrodynamic clutch device and method for the production thereof
US20050204541A1 (en) Method for manufacturing clutch housing
EP1717470A2 (de) Lageranordnung mit zweiteiligem Lagerträger
CN207526954U (zh) 链条的链轴
EP2886898B1 (de) Kupplung mit deckelfestem Ausrücker
JP6226818B2 (ja) プレストレス装置、これを備えるスタンド拡縮ミル及びプレストレスの付与方法
CN202137186U (zh) 菌式穿孔机轧辊轴与花键套装配结构
WO2020051873A1 (en) Pilot assembly, processing method of pilot assembly and hydraulic torque converter
EP1514037B2 (de) Doppelkupplungsanordnung

Legal Events

Date Code Title Description
AS Assignment

Owner name: ZF FRIEDRICHSHAFEN AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KRAUS, ACHIM;FAUSS, CHRISTOPH;SCHIERLING, BERNHARD;AND OTHERS;SIGNING DATES FROM 20181017 TO 20181112;REEL/FRAME:047546/0859

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE